C--
C--   /DYNSP1/ : prognostic spectral variables for model dynamics 
C--              (initial. in INVARS, updated in STEP)
C--    VOR     = vorticity
C--    DIV     = divergence
C--    T       = abs. temperature
C--    PS      = log of (norm.) sfc pressure (p_s/p0)
C--    TR      = tracers (tr.1: spec. humidity in g/kg)
C--
C--   modified for 4th-order Runge-Kutta by DH
C--                                            2012/11/13  Daisuke Hotta
C--
      COMMON /DYNSP1/ VOR(MX,NX,KX,4), DIV(MX,NX,KX,4), T(MX,NX,KX,4),
     *                PS(MX,NX,4), TR(MX,NX,KX,4,NTR)
      COMPLEX         VOR, DIV, T, PS, TR
C--
C--   /DYNSP2/ : geopotential 
C--    PHI     = atmos. geopotential  (updated in GEOP)
C--    PHIS    = surface geopotential (initial. in INVARS)

      COMMON /DYNSP2/ PHI(MX,NX,KX), PHIS(MX,NX)
      COMPLEX         PHI, PHIS
